Analysis on what kind of communication method should be selected for intelligent lighting

In recent years, the concept of LED intelligent lighting has become more and more hot. In addition to controlling LEDs in terms of low power consumption, environmental protection, dimming and color matching, manufacturers continue to pay attention to another key wireless control of intelligent lighting. Therefore, how to build a low-power, high-efficiency wireless LED lighting system that meets the basic needs of smart homes is the top priority of manufacturers. Under the premise of mainstream wireless communication methods such as WIFI, ZigBee, and low-power Bluetooth, how do we choose? WIFI, ZigBee and BLE disputes We know that WIFI technology has a low threshold for research and development, low product cost, and relatively fast speed, coupled with the inherent advantages of no need for bridges to directly access the Internet and seamless communication with mobile phones. It has become the choice of many start-ups, and this is the biggest advantage that WIFI shows. However, the shortcomings of WIFI are obvious. In addition to the large size and high power consumption of WIFI chips, there is also the poor experience brought about by its instability. The most important point is that WIFI will bring security problems. I believe this is also the key consideration for users when purchasing. Therefore, when manufacturing products, the choice of WIFI products needs to weigh the pros and cons. In addition, limited to the characteristics of the WIFI itself, the access limit of the access mode is mainly limited to the number of nodes of the WIFI router (typically tens of nodes), which is often ignored for users with many lighting devices. Class products. Another major wireless connection method is ZigBee. This low-power wireless control protocol has been widely welcomed by users and manufacturers since its birth. ZigBee needs a self-organizing network, and each node of the network can borrow data to transmit data. A centralized node is needed in the network to manage the entire network. This means that there must be a router-like role in the ZigBee network to complete the conversion of the ZigBee protocol to the Internet protocol. Regarding this router, for the sake of visual explanation, we use Philips Hue as an example. This extra guy is what is called Bridge in Hue's Starter package. It has no extra use, but it can integrate other lights into one network. And connect to the internet. From the above description, the most obvious disadvantage of ZigBee is the increase in cost and the complexity of installation. In addition, it needs to be connected to the mobile phone through the transfer. But considering that Bridge can bring more remote access capabilities, coupled with natural low-power features, companies like Philips and other high-end companies should choose this option. Therefore, for WIFI and ZigBee, both are long and the feet are short. The specific choice depends on the balance of the manufacturer and the choice of the user.

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